//
// CompoundFileSet
//
// Copyright (C) jextra.net.
//
//  This file is part of the Crack build system.
//
//  The Crack build system is free software; you can redistribute it 
//  and/or modify it under the terms of the GNU Lesser General Public
//  License as published by the Free Software Foundation; either
//  version 2.1 of the License, or (at your option) any later version.
//
//  The Crack build system is distributed in the hope that it will be 
//  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//  Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with the Crack build system; if not, write to the Free
//  Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
//  02111-1307 USA.
//

package net.jextra.crack.type;

import java.io.*;
import java.util.*;

/**
 * A FileSet of {@link FileSet}s.
 */
public class CompoundFileSet implements FileSet
{
    // ============================================================
    // Fields
    // ============================================================

    public List<Iterable<File>> children;

    // ============================================================
    // Constructors
    // ============================================================

    public CompoundFileSet()
    {
        children = new ArrayList<Iterable<File>>();
    }

    // ============================================================
    // Methods
    // ============================================================

    // ----------
    // public
    // ----------

    public void addFiles( Iterable<File> fileSet )
    {
        children.add( fileSet );
    }

    public List<File> getFiles()
    {
        ArrayList<File> files = new ArrayList<File>();
        for ( Iterable<File> child : children )
        {
            for ( Iterator<File> i = child.iterator(); i.hasNext(); )
            {
                files.add( i.next() );
            }
        }

        return files;
    }

    @Override
    public Iterator<File> iterator()
    {
        return getFiles().iterator();
    }
}

